Finding the Fourth Proportional to 76,743,181.24, 105,905,872.18 and 41,935,876.92
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Solution
The fourth proportional to 76,743,181.24, 105,905,872.18 and 41,935,876.92 is: 57,871,664.28
Step by Step Solution
- Step 1: Write the proportion equation
76,743,181.24 : 105,905,872.18 = 41,935,876.92 : x - Step 2: Convert to fraction form
76,743,181.24/105,905,872.18 = 41,935,876.92/x - Step 3: Cross multiply
76,743,181.24x = 105,905,872.18 × 41,935,876.92 - Step 4: Simplify right side
76,743,181.24x = 4,441,255,620,845,732.50 - Step 5: Solve for x
x = 4,441,255,620,845,732.50/76,743,181.24 - Step 6: Final answer
x = 57,871,664.28
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.